Low-dropout regulator
US9766642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2010 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/573
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A low-dropout voltage regulator comprises an output terminal for providing an output voltage regulated as a function of a reference voltage, and for providing an output current, and additionally comprising an output current limiting unit. The current limiting unit comprises a replicator for replicating the output current to provide a mirror current of the output current, a comparator circuit for comparing the mirror current with a reference current, and a feedback circuit for supplying feedback to the regulator in order to limit the output current when the mirror current is greater than the reference current. The mirror current is injected into the output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.